What You Can't Do With A Prenup...
There are some things you just can't -- or shouldn't -- do with a prenup. State laws differ as to what matters are considered off-limits. However, as a general rule, any agreement to do something that is illegal or against state-defined public policy will be considered unenforceable -- and may even jeopardize other valid aspects of the premarital agreement. Here are some things that you can't do, at least in some states:
Restrict child support, custody, or visitation rights. No state will honor agreements limiting or giving up future child support. The same holds true of agreements limiting future custody and visitation rights. This is because state lawmakers consider the welfare of children to be a matter of public policy and do not enforce any private agreements that would impair a child's right to be supported or to have a relationship with a parent in the future.
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